... Tin,Silver-Copper-Zinc-Cd,Copper-Zinc,Aluminum base copper welding rods / brazing rods / solder rodsPhos-Copper-Silver ... silver or silver based alloy.lt makes perfect welding effect with low melting point,fine wettability and ... ,well corrosion resistance,it can be used for welding all ferrous and nonferrous metals except of Aluminum, ... /Zn plated steel parts. copper brazing alloy welding rod